Prof. Anton Yu. Potlov Profile

Prof. Anton Yu. Potlov

Associate Professor at Tambov State Technical Univ

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Publications (19)

Proceedings Article | 4 May 2021 Paper

Evaluation of geometric characteristics and internal structure of atherosclerotic plaques on the walls of the blood vessels and their phantoms using intravascular optical coherence tomography

A. Yu. Potlov, S. Frolov, S. Proskurin

Proceedings Volume 11845, 118450O (2021) https://doi.org/10.1117/12.2590618

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A method for studying atherosclerotic plaques on the walls of large blood vessels is described. The method is based on a study of raw data of intravascular optical coherence tomography (IOCT). Identification of fat constituents, calcium, cholesterol crystals, macrophage clusters, blood clots, etc. within the areas of atherosclerotic lesions of blood vessels is based on the study of two parameters only. The intensity of the A-scan interference signal is the first parameter, and the biomechanical properties (primarily Young's modulus) are the second analyzed parameter. The pulse wave is used as the least traumatic deforming effect. The magnitude of the deforming effect in blood vessels is calculated using averaging of the blood pressure differences. This data is acquired using an invasive pressure probe. Structural IOCT-images corresponding to the moments of systole and diastole are selected from the sequence of raw data. Both IOCT-images are segmented and classified by signal intensity. Primarily, identification of segments is based on reference data of the optical properties of the atherosclerotic plaques’ components. The segments with similar geometrical locations and signal intensity are grouped into pairs. The centroids are calculated for all segments. The absolute displacements of the segments are estimated by the displacements of the centroids. The area of deformation is considered to be equal to the scanning area of the applied intravascular probe. The dimensions of the deformable area for the set of segments of two analyzed images are calculated with respect to the coordinate axes and then averaged. The biomechanical properties of the segments are calculated according to classical formulas and are used to update values of the primary identification of the structural components of atherosclerotic plaques. Information about the geometric characteristics and internal structure of atherosclerotic plaques are used to identify their properties and current stability.

Proceedings Article | 4 May 2021 Paper

A method for evaluation of absolute and relative blood flow velocities in soft biological tissues using optical coherence tomography

A. Yu. Potlov, S. Frolov, S. Proskurin

Proceedings Volume 11845, 118450N (2021) https://doi.org/10.1117/12.2590617

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Proceedings Article | 4 May 2021 Paper

Tissue-like phantoms mimicking blood vessel for intravascular optical coherence tomography

A. Yu. Potlov, S. Proskurin, S. Frolov

Proceedings Volume 11845, 118450P (2021) https://doi.org/10.1117/12.2590620

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A method for cerebral vessel tissue-like phantom making and a device for the realizing pulsating flows in them are described. The blood vessels are molded together with models of the organs carrying them. A blood vessel phantom is a hollow structure with three-layered walls mimicking its geometry, structure, inhomogeneity of optical and mechanical properties. The model of an organ serves only for fixing the hollow structure of it in anatomically correct position and therefore is homogeneous in texture and properties. The source of information about the geometry of the imitated blood vessel is the results of angiography of a real clinical case. The three-layered structure of phantoms is justified by the anatomical features of real blood vessels (outer layer - adventitia, middle layer - media, inner layer - intima). The three-layered structure is made by layer-by-layer application of a transparent two-component liquid silicone on a wax base. Each layer is distinguished by its thickness and unique concentration of special admixtures (titanium dioxide nanoparticles and absorbing colorant). Mechanical properties of the layers are changed by varying the concentration of the components of the transparent liquid silicone. The phantom is solidified and then heated to remove the wax. Then the phantom of a blood vessel is placed in a mold of a corresponding organ. The mimicking organ is also made from a two-component transparent liquid silicone with special admixtures. Both proximal and distal ends of the hollow structure are connected with fork catheters. A 1% of intralipid solution in water is used to simulate blood flow in the phantom. Streaming velocity control of a blood-mimicking liquid is provided by a syringe pump. Pulsating flow is generated by the controlled twisting of the tube between the pump and the phantom of a blood vessel. A vibration motor is used to change the velocity profile. The described experimental model of a hydrodynamic phantom of a blood vessel is used in combination with intravascular optical coherence tomography for checking compression elastography properties.

Proceedings Article | 4 May 2021 Paper

Evaluation of dynamic viscosity of turbid fluids using optical coherence tomography

A. Yu. Potlov, S. Frolov, S. Proskurin

Proceedings Volume 11846, 118460R (2021) https://doi.org/10.1117/12.2590621

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Proceedings Article | 9 April 2020 Paper

Phantoms of optical and stress-related properties of cerebral arteries with aneurysms for intravascular optical coherence tomography

A. Yu. Potlov, S. Frolov, T. Frolova, S. Proskurin

Proceedings Volume 11457, 114571Q (2020) https://doi.org/10.1117/12.2563854

KEYWORDS: Tissues, Blood vessels, Optical coherence tomography, Silicon, Tissue optics, Liquids, Arteries, Elastography, Optics manufacturing, Blood circulation

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Proceedings Article | 9 April 2020 Paper

High-precision evaluation of stress-related properties of blood vessel walls using intravascular optical coherence elastography with forward-view probe

A. Yu. Potlov, S. Frolov, T. Frolova, S. Proskurin

Proceedings Volume 11457, 114571P (2020) https://doi.org/10.1117/12.2563849

KEYWORDS: Blood vessels, Aneurysms, Cerebral aneurysms, Coherence (optics), Elastography, Signal processing, Hemodynamics, Sensors, Optical coherence tomography, Computer simulations

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Proceedings Article | 9 April 2020 Paper

Tissue-mimicking phantoms of human retina with consideration to blood circulation for Doppler optical coherence tomography

A. Yu. Potlov, S. Frolov, S. Proskurin

Proceedings Volume 11457, 114571S (2020) https://doi.org/10.1117/12.2563859

KEYWORDS: Retina, Blood vessels, Hemodynamics, Optical coherence tomography, Blood circulation, Silicon, Doppler tomography, Tissue optics, Eye, Arteries

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Proceedings Article | 9 April 2020 Paper

Numerical simulation of optical coherence tomography interference signal occurring in the intravascular space under a layer of soft biological tissue

A. Yu. Potlov, S. Frolov, S. Proskurin

Proceedings Volume 11457, 114571R (2020) https://doi.org/10.1117/12.2563858

KEYWORDS: Optical coherence tomography, Blood, Numerical simulations, Tissue optics, Monte Carlo methods, Geometrical optics, Tissues, Signal processing, Computer simulations, Data modeling

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Proceedings Article | 3 June 2019 Paper

Neuroimaging technique using time-resolved diffuse optical tomography and inhomogeneity localization algorithm

A. Yu. Potlov, S. Frolov, S. Proskurin

Proceedings Volume 11065, 110650Z (2019) https://doi.org/10.1117/12.2523239

KEYWORDS: Tissues, Tissue optics, Absorption, Biomedical optics, Blood, Diffuse optical tomography, Neuroimaging, Visualization, Brain

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Proceedings Article | 3 June 2019 Paper

Borderline reconstruction of absorbing and scattering inhomogeneity in biological tissue using time-resolved diffuse optical tomography

A. Yu. Potlov, S. Frolov, S. Proskurin

Proceedings Volume 11065, 110650Y (2019) https://doi.org/10.1117/12.2523238

KEYWORDS: Scattering, Inverse optics, Biomedical optics, Tissue optics, Absorption, Reconstruction algorithms, Photons, Diffuse optical tomography

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Proceedings Article | 3 June 2019 Paper

Young's modulus evaluation for blood vessel equivalent phantoms using optical coherence elastography

A. Yu. Potlov, S. Frolov, S. Proskurin

Proceedings Volume 11065, 110650X (2019) https://doi.org/10.1117/12.2523237

KEYWORDS: Blood vessels, Optical coherence tomography, Endoscopy, Elastography, Coherence (optics), Visualization, Cardiovascular system, Tissues, Image processing algorithms and systems

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Proceedings Article | 3 June 2019 Paper

An algorithm for speckle noise reduction in endoscopic optical coherence tomography structural imaging

A. Yu. Potlov, S. Frolov, S. Proskurin

Proceedings Volume 11065, 110650W (2019) https://doi.org/10.1117/12.2523236

KEYWORDS: Optical coherence tomography, Endoscopy, Speckle, Speckle pattern, Image processing, Convolution, Denoising, Image filtering, Digital filtering, Structural imaging

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Proceedings Article | 26 April 2018 Paper

Color mapping of one specific velocity of a biological fluid flows with complex geometry using optical coherence tomography

A. Yu. Potlov, S. Frolov, S. Proskurin

Proceedings Volume 10716, 107160A (2018) https://doi.org/10.1117/12.2314439

KEYWORDS: Optical coherence tomography, Doppler tomography, Tissues, Doppler effect, Blood circulation, Medical imaging, Imaging systems, Bandpass filters

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Proceedings Article | 26 April 2018 Paper

An algorithm for improving the quality of structural images of turbid media in endoscopic optical coherence tomography

A. Yu. Potlov, S. Frolov, S. Proskurin

Proceedings Volume 10716, 1071609 (2018) https://doi.org/10.1117/12.2314967

KEYWORDS: Optical coherence tomography, Endoscopy, Raster graphics, Reconstruction algorithms, Speckle, Tissues, Signal to noise ratio, Signal processing, Diagnostics, Image filtering

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Proceedings Article | 26 April 2018 Paper

An algorithm for localization of optical disturbances in turbid media using time-resolved diffuse optical tomography

A. Yu. Potlov, S. Frolov, S. Proskurin

Proceedings Volume 10716, 107160B (2018) https://doi.org/10.1117/12.2315096

KEYWORDS: Biomedical optics, Scattering, Photons, Inverse problems, Sensors, Geometrical optics, Absorption, Tissue optics, Diffusion

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Proceedings Article | 24 March 2017 Paper

Monte-Carlo simulation of OCT structural images of human skin using experimental B-scans and voxel based approach to optical properties distribution

S. Frolov, A. Yu. Potlov, D. Petrov, S. Proskurin

Proceedings Volume 10336, 103360Z (2017) https://doi.org/10.1117/12.2269659

KEYWORDS: Monte Carlo methods, Optical coherence tomography, Skin, Optical properties, Coherence (optics), Scattering, Computer simulations, Photon transport, Image restoration, Reconstruction algorithms, Sensors

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Proceedings Article | 24 March 2017 Paper

Specific features of movement of the photon density normalized maximum in highly scattering media with tissue-like optical properties

A. Yu. Potlov, S. Frolov, S. Proskurin

Proceedings Volume 10336, 103360Y (2017) https://doi.org/10.1117/12.2269328

KEYWORDS: Scattering media, Tissue optics, Optical properties, Diffusion, Radiative transfer, Diffuse optical tomography, Scattering, Light scattering, Video, Atomic force microscopy, Tissues

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Proceedings Article | 19 March 2015 Paper

Inhomogeneity detection in diffuse optical imaging using conformal mapping

A. Potlov, S. Frolov, S. Proskurin

Proceedings Volume 9448, 944805 (2015) https://doi.org/10.1117/12.2178303

KEYWORDS: Photons, Visualization, Scattering, Diffuse optical imaging, Diffuse optical tomography, Sensors, Tissue optics, Optical properties, Natural surfaces, Point spread functions

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SPIE Journal Paper | 13 February 2015 Open Access

One specific velocity color mapping using optical coherence tomography

Sergey Proskurin, Anton Potlov, Sergey Frolov

JBO, Vol. 20, Issue 05, 051034, (February 2015) https://doi.org/10.1117/12.10.1117/1.JBO.20.5.051034

KEYWORDS: Optical coherence tomography, Doppler tomography, Signal processing, Capillaries, Doppler effect, Bandpass filters, Biomedical optics, Analog electronics, Digital filtering, Phase shifts

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